Plug-and-socket connector.



i. SACHS PLUG AND SOCKET CONNECTOR.

APPLICATION FILED AUG.30, 1912.

1,135,206 Patemefi Apr. 13, 1915.

"{tatibdb the locking projections 13- shown Gitv less; 007W ing the plate 20. The wire to be connected "with the central bottoming contact passes through the hole in the core and has its end wound around the head of the screw 21 which when screwed down so that the washer head rests on the bottoming end. of the plug 'forms'the central bottoming contact of the plug and is intended to coact with and abut against the central contact in the socket I or receptacle.

andnsnanzintoj.

When the two parts of the plug are associated as shown in F igs, 1 and 2, the internal, conical or counter-sunk flange 7 at the end of the screw shell'6 rides on the coned surface 14 of the sleeve 12 secured to the core 9 and consequently when pressure is applied to force the core 9 with its enlarged and coned surface bottoming end farther. up into the shell, the riding of the coned portion-l4 of the sleeve 12 on the counter-sunk or cone seated internally directed flange, 7 of the screw shell 6, tends to force he, shell fingers or arms 8, outwardly. In the position shown in the drawings and before or when the plug is entering the socket or receptacle the fingers or arms 8 of the longitudinally slit screw shell 6 may be torced inwardly'slightly-so that the thread diameter of the, shell 6 is decreased. f .Inuse} the two plug parts, 3 and tare si PPe e Lby-pu11in the ceht-ralpart 3 out o .the' companion part. The fiexible cable oi"'wires are then threaded through the onning off the'insulating p portion .5- and. one Offjsa Fl w 16$- passing th rough the; 1101923 in the core 9 is secured andpon ect l. 3d to the nlate 201W.the,.,i;crew*?l; ilc lieoth r wire is connected to" the connect i552 on\Iqgmg i em by mean sp t h mniletor 17'. 'The; two .parts otf thdplug; m' i hr v shedg ge lindricalfbody the e m tilf l. gi t,

t 'tza ill terate tlt ifliv e lasse e se r t-e sitei es a l rat-e19; e

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i c o H I .fa'ee ij ie 1We -1 gA ER E EQQ a, ene c wa er d enamels/as w ve etarians- '4 we asanraeyites methane] h 96669 ptw fir hwl e re h at s e th new seem eh t gihfi lwgllqtmg head 5 t cle. The shell 6 of the plug giving infra rotative or screwing motion .which results such that a slight downward movement of 31695? tbrsmgtthe y g e A movement of iisl'ied; into the, receptacle. ,so, .thafi itsf'bottoming" end abuts and is fam dagainst the central contact of the race 't ly permits the plug to be easily pushed into the bottoming-position and the-"threads of'l'o the plug shell 6snap over and engage the threads of the socket or receptacle she After bottoming the plugby pushin into the socket or receptacle, it given a s light in pulling the shell 6 of the plug downslightly into the shell of the socket'dueto the coaction of the screwthreads andat the same time the fingers or arms 8. of the plug-tshell 6 are forced outwardly into firmer and locking engagement withrthe receiving socket shell, due to the expanding action produced by the coaction of theconed surface 14 of the locking shell IZriding-Dn; the counter-sunk or coned internal flange 7 of the plug shell 6. This locking action;- is exceedingly secure inasmuch as the an-a gular relation of the" locking members'is the shell 6 into the socket produces a subs, stantial outward movement of the arms of the shell 6. v r

In order that the wire connectiomparts: on the plug be-relieved from asmuch; strain: as possible, each of the wires of the'flexible cable is gripped between the inside of-the, cap 5 and the top of thecylindrical part 10 of the core portion 9 of'the plug andthis gripping action due to the proportion oi-the, parts is assured when the twov-partjs-of, the plug-are drawn togetherupon msertionin. the socket.

What 1 claim is:

1.- As an article trical plugcomprising a core member hay i-ng a longitudinal rece'ss,a sleeve embracing, the core member,a connector fastened wgithfl in-and to said sleeve and disposed n-thg pe ss; nd a s w h endisse be; sleeve provided with an expansi le pp; 0 tee l"? e zieseeresdns an sepw ll wo --eeata% aithe gsi will s (a wa e er exmeve aentiptea-iee Re iment W 1 a? As eneat iele ewen ta turesn (Ele t weet-s me imei laetcomari inei aimeie liw i et iimee rse nee-re: ana -2e ines a the core hexiesetenei srtieii eitii tra nee e eqteiau 1 .i an r rasshleirereeestee .e ifi f 91:: re imes; haying enmietsmedi an e was est em" q'fleeea rater with the cone portion e t i s sleev e, tg iaeieereefiles st i $il t lfibfillhfiitliil the P .,.;sq ;lete@ 34* 3150 dibsz lll i l-l qi%i9fi mam e aet -teflei ee e eswsaezreeaeas ean s remiss; t rse West-aisles 'eiih eeeehm eieifil aeeseue ete terse es-sends a y qon nected-iwitln said 'slegggmggd 1 0 e metsll; seemed rude ilt 9 1 hell surrounding the sleeve, proth an enpansible portion, said ing inesns for expanding said ortion into. contact with the m socket on the movement of said plug in socket.

As an article of manufacture, an electric slug comprising a core member and a sleeve emlnrecing the core member, one of '1 arm the garts having s pro ecting portion the other a recessed portion to receive the projecting portion and thereby interlock the sleeve and. the core member, a connector connected electrically with said sleeve, and a screw shell surrounding the sleeve provided with an expansible portion, said sleeve having means for expanding said expansible portion into Contact with the wall of a socket on the movement of said plug in said socket.

In testimony whereof I afiix my signature in presence of two Witnesses.

JOSEPH SACHS. Witnesses F. ANDERSON, HEATH SUTHERLAND. 

